package cn.hr.security;

import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.security.web.DefaultRedirectStrategy;
import org.springframework.security.web.RedirectStrategy;
import org.springframework.security.web.session.SessionInformationExpiredEvent;
import org.springframework.security.web.session.SessionInformationExpiredStrategy;

import javax.servlet.ServletException;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

/**
 * Created by MO on 2018/12/28.
 */
public class CustomExpiredSessionStrategy implements SessionInformationExpiredStrategy {
    private ObjectMapper objectMapper = new ObjectMapper();
    private RedirectStrategy redirectStrategy = new DefaultRedirectStrategy();

    @Override
    public void onExpiredSessionDetected(SessionInformationExpiredEvent event) throws IOException, ServletException {
        Map<String, Object> map = new HashMap<String, Object>(16);
        map.put("code", 0);
        map.put("msg", "已经在另一台机器登录,您被迫下线." + event.getSessionInformation().getLastRequest());
        String json = objectMapper.writeValueAsString(map);
        event.getResponse().setContentType("application/json;charset=UTF-8");
        event.getResponse().getWriter().write(json);
    }
}
